Door hinge



FIG. 1 is a perspective view of our new design for a door hinge;

FIG. 2 is a top view thereof, the bottom view being a mirror image thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The broken lines represent portions of the structure that form no part of the claim. 

The ornamental design for a door hinge, as shown and described. 